Hey you and me both. When I setup my Fluval for the first time I probably ran the stock length of hose for at least 8 months lol. There certainly is a little bit of a learning curve with canister filters compared to the convince of power filters, as well as getting over the stigma and the 'OMG what if I do something wrong' factor. But really there isn't much too it, and well worth the extra setup time in the end
Knock on wood, I haven't personally broke the clips off of the three I've got, but I from what I've read on other forums this isn't a real uncommon occurrence. I thought I had a few times, but I really just popped them out of the 'teeth' that hold them.
I've actually got the spray bars in my 75 pointing in different directions. Since the bar that came with the Rena is individual pieces, I'm using three pieces to make the spray bar and I have each one in a slightly different direction. The section next to the return pipe is almost pointing straight down around 195 degrees, the second a little further out twords the front of the tank, and the last one futher than the one before it. In my mind I did this to try to give some diversity to the water flow as well to stir up gunk so the filters can get them.